Subtract 3/81 from 12/14
12/14 - 3/81 is 155/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
12/14 = 12 × 81/14 × 81 = 972/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
3/81 = 3 × 14/81 × 14 = 42/1134 - Subtract the two like fractions:
972/1134 - 42/1134 = 972 - 42/1134 = 930/1134 - After reducing the fraction, the answer is 155/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14-3/81 12/14-6/81 12/28-3/81 36/14-3/81 12/14-9/81 12/42-3/81 60/14-3/81 12/14-15/81 12/70-3/81 84/14-3/81 12/14-21/81 12/98-3/81